单眼轻度近视青少年主导眼与近视关系分析

Analysis between dominant eye and myopia in adolescents with monocular mild myopia

目的调查分析单眼轻度近视青少年近视程度与主导眼间的相互关系。方法79例单眼轻度近视青少年根据近视程度分为Ⅰ组（-0．25-0．75Ds）15例，Ⅱ组（-1．0-2．0Ds）46例，Ⅲ组（-2．25--3．0Ds）18例。卡洞法测量所有受检者注视远5m处及近33cm处的主导眼，配镜矫正屈光不正后重新测量远近两处的主导眼别。结果根据轻度近视程度的不同，近视所在眼为主导眼的受检者在Ⅰ、Ⅱ、Ⅲ组中远5m处分别为：13例（86．7％）、28例（60．9％）、5例（27．8％）；近33cm处分别为15例（100％）、40例（86．9％）、9例（50．0％）；配镜矫正后3组远5m处分别为：14例（93．3％）、38例（82．6％）、8例（44．4％）；近33cm处分别为：15例（100％）、40例（86．9％）、10例（55．6％）。3组受试者5m及33cm处裸眼及配镜矫正后主导眼所在眼差异均有统计学意义。结论近视屈光参差人群中，单眼视觉质量的下降会造成主导眼在双眼间的转换，近视程度的发展与主导眼之间存在某种联系。

Objective To analyze the interrelation between myopia and dominant eye in the for- mation of myopia anisometropia. Methods All the 79 monocular mild myopic adolescents were di- vided into 3 groups according to their myopia degree： group Ⅰ （-0.250.75Ds） 15 cases, group Ⅱ （-1.0--2.0Ds） 46 cases, group Ⅲ （-2.25--3.0Ds） 18 cases. Card-Hole measurement was applied to de- cide dominant eye at 5m and 33cm, then re-measured dominant eye after correcting refractive error. Results According to the degree of mild myopia, subjects whose dominant eyes were myopic eyes in these 3 groups were 13 cases （86.7%）, 28 cases （60.9%） , 9 cases （50.0%） at 5m distance respective- ly and 15 cases （100%）, 40 cases （86.9%）, 4 cases （27.8%） at 33cm distance respectively. After cor- recting refractive error, 14 cases （93.3%）, 38 cases （82.6%）, 8 cases （44.4%） at 5m distance respective- ly and 15 cases （100%）, 40 cases （86.9%）, 10 cases （55.6%） at 33cm distance respectively. Signifi- cant differences were found in dominant eye between 3 groups at 5m or 33cm before and after cor- recting. Conclusions The decreasing of visual quality may cause the switch of dominant eye in group with monocular mild myopia. There exists some relationship between myopia and dominant eye.